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Leigh Syndrome on PFOND

Leigh syndrome is a rare inherited neurodegenerative condition that affects at least 1 in 40,000 newborns. It most often occurs in infants before 2 years of age, but late-onset Leigh syndrome has also been reported. Leigh syndrome is characterized by almost identical brain changes: focal, bilateral symmetric lesions associated with demyelination, vascular proliferation and gliosis. It can be classified into three categories according to the mode of inheritance: Mitochondrial-DNA Associated (Maternally-inherited), Autosomal Recessive, and X-linked.